RE: [Dev-C++] how to use "srand"

[Ioannis V. <iv...@em...>]

> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf 
> Of Ian Hill
> Sent: Friday, March 21, 2003 11:35 AM
> To: dev...@li...
> Subject: RE: [Dev-C++] how to use "srand"
> 
> 
> The following is a bit of C code that uses the current time as a seed.
> It's an example I have so it may have bits you will need to modify
> (Namespaces and .h files etc.)
> But it does work. 
> 
> 
> /*
> ** Program to demonstrate the use of the rand function
> */
> #include <stdio.h>
> #include <stdlib.h>
> #include <time.h>
> 
> int main(int argc, char *argv[])
> {
>     int nCount;
>     int nRandom;
> 
>     /* Seed random number generator with current time */
>     srand((unsigned)time(NULL));


There is no need for casting here. The time_t argument (a typedef of a
signed integral type) is implicitly converted to unsigned int.


> 
>     /* Display 20 random positive integers */
>     for(nCount=0; nCount<20; nCount++)
>     {
>         nRandom=rand();
>         printf("%d ", nRandom);
>     }
>     
>     system("PAUSE");
>     return 0;
> }



Regards,

Ioannis Vranos
 
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